Apparatus for precisely adjusting the position of workstations in a document printer/copier

Abstract

Apparatus for precisely positioning one or more of the workstations of a document printer/copier relative to an internal drum, including a first member, attached to either a workstation or the internal drum, having two sections, each section having a reference surface forming an angle therebetween, an actuator for changing the included angle between the first reference surface and second reference surface, thus enabling the included angle to be increased or decreased, and a second member having a reference surface that mates with the pair of reference surfaces, associated with the other of the workstation or the internal drum, so as to accurately adjust the workstation relative to the internal drum dependent upon the included angle of the first reference surface and second reference surface.

1 . Apparatus for precisely adjusting the position of a workstation relative to a work-piece, said adjusting apparatus comprising: 
 a first member, attached at a predetermined position with respect to either of said workstation or said work-piece, said member having first and second relatively movable sections, said first section having a first section surface and said second section having a second section surface at an angle to said first section surface;    a second member, attached at a predetermined position with respect to the other of said workstation or said work-piece, said second member having a reference surface thereon, said reference surface being positioned to engage said first section surface and said second section surface to position said workstation relative to said work-piece; and    an actuator for changing the angular position of said first section surface relative to said second section surface, said actuator including a cam-shaped member, and means for selectively rotating said cam-shaped member within said first member between said first section and said second section to change the angle between said first section and said second section, whereby the position of said work-piece relative to said workstation is accurately adjusted.    
   
   
       2 . Apparatus for precisely adjusting the position of a workstation relative to a work-piece, said workstation including a housing containing an operative component adapted to effect a process to be carried out upon said work-piece, said apparatus comprising: 
 a member, attached to said housing at a predetermined position with respect to the operative component of said workstation, having a groove defining first and second sections of said member on opposite sides of said groove, said first section having a first section surface and said second section having a second section surface positioned relative to said first section surface;    at least one work-piece support member, having a workstation-positioning reference surface thereon, said workstation-positioning reference surface being positioned to engage said first section surface and said second section surface to position said operative component of said workstation relative to said work-piece; and    an actuator for selectively expanding or contracting the width of said groove, thereby changing the position of said first section surface relative to said second section surface, whereby when said workstation-positioning reference surface engages said first and second section surfaces the position of said operative component relative to said work-piece is accurately adjusted.    
   
   
       3 . The apparatus as defined by  claim 2 , wherein said actuator comprises a screw with a non-threaded tapered end, and means for selectively advancing or retracting said screw into or out of a tapered hole defined in said groove.  
   
   
       4 . The apparatus as defined by  claim 2 , wherein said actuator comprises a cam-shaped member, and means for selectively rotating said cam-shaped member within said groove.  
   
   
       5 . The apparatus as defined by  claim 2 , wherein said first section surface and said second section surfaces are planer and angularly positioned relative to one another, and said workstation-positioning reference surface is hemispherically shaped.  
   
   
       6 . The apparatus as defined by  claim 5 , wherein said actuator comprises a screw with a non-threaded tapered end, and means for selectively advancing or retracting said screw into or out of a tapered hole defined in said groove.  
   
   
       7 . The apparatus as defined by  claim 5 , wherein said actuator comprises a cam-shaped member, and means for selectively rotating said cam-shaped member within said groove.  
   
   
       8 . Apparatus for precisely adjusting the position of a workstation relative to the surface of a rotating drum, said workstation including a housing containing an elongated operative component extending along a longitudinal axis and adapted to effect a process to be carried out upon the surface of said drum, said apparatus comprising: 
 a member, attached to said housing at a predetermined position with respect to the operative component of said workstation, having a groove defining first and second sections of said member on opposite sides of said groove, said first section having a first section surface and said second section having a second section surface positioned relative to said first section surface;    a pair of drum-support members, each having a centrally located bearing adapted to receive and rotatably support one end of said drum relative to a longitudinal axis of said bearing, at least one of which drum-support members having a workstation-positioning reference surface thereon, said workstation-positioning reference surface being positioned to engage said first section surface and said second section surface to position said operative component of said workstation relative to the surface of said drum; and    an actuator for selectively expanding or contracting the width of said groove, thereby changing the relative position of said first section surface and second section surface, whereby when said workstation-positioning reference surface engages said first and second section surfaces the position of said operative component relative to said work-piece is accurately adjusted.    
   
   
       9 . The apparatus as defined by  claim 8 , wherein said actuator comprises a screw with a non-threaded tapered end, and means for selectively advancing or retracting said screw into or out of a tapered hole defined in said groove.  
   
   
       10 . The apparatus as defined by  claim 8 , wherein said actuator comprises a cam-shaped member, and means for selectively rotating said cam-shaped member within said groove.  
   
   
       11 . The apparatus as defined by  claim 8 , wherein said first section surface and said second section surfaces are planer and angularly positioned relative to one another, and said workstation-positioning reference surface is hemispherically shaped.  
   
   
       12 . The apparatus as defined by  claim 11 , wherein said actuator comprises a screw with a non-threaded tapered end, and means for selectively advancing or retracting said screw into or out of a tapered hole defined in said groove.  
   
   
       13 . The apparatus as defined by  claim 11 , wherein said actuator comprises a cam-shaped member, and means for selectively rotating said cam-shaped member within said groove.  
   
   
       14 . The apparatus as defined by  claim 8 , wherein the surface of said drum is coated with a photoconductive member and said operative element is at least one of the devices which includes means for forming a transferable toner image on said photoconductive member.  
   
   
       15 . The apparatus as defined by  claim 14 , wherein said actuator comprises a screw with a non-threaded tapered end, and means for selectively advancing or retracting said screw into or out of a tapered hole defined in said groove.  
   
   
       16 . The apparatus as defined by  claim 14 , wherein said actuator comprises a cam-shaped member, and means for selectively rotating said cam-shaped member within said groove.  
   
   
       17 . The apparatus as defined by  claim 14 , wherein said first section surface and said second section surface are planer and angularly positioned relative to one another, and said workstation-positioning reference surface is hemispherically shaped.  
   
   
       18 . The apparatus as defined by  claim 17 , wherein said actuator comprises a screw with a non-threaded tapered end, and means for selectively advancing or retracting said screw into or out of a tapered hole defined in said groove.  
   
   
       19 . The apparatus as defined by  claim 17 , wherein said actuator comprises a cam-shaped member, and means for selectively rotating said cam-shaped member within said groove.